Featured Research

from universities, journals, and other organizations

Searchable Scanned Documents With Copy Protection For Archives Storage

Date:
July 3, 2009
Source:
Inderscience
Summary:
An efficient new approach to archiving scanned documents that makes the text searchable and adds a watermark to images for copy protection and validation has been developed.

An efficient new approach to archiving scanned documents that makes the text searchable and adds a watermark to images for copy protection and validation is reported in the inaugural issue of the International Journal of Reasoning-based Intelligent Systems.

Related Articles


The promise of the paperless office was never fulfilled. Indeed, as a society we seem to use more paper documents than at any time in history. However, there is now the additional demands of requiring paper documents to be archived, to be searchable, and to leave a virtual paper-trail for documentary providence.

Roumen Kountchev of the Technical University of Sofia working with Vladimir Todorov and Roumiana Kountcheva of T&K Engineering Co. in Sofia, Bulgaria have a new approach for efficient archiving and content protection of scanned documents, comprising texts and pictures.

Their approach takes the raw image of a scanned document and processes the text and images in the document in two different ways. The images are compressed using an algorithm known as IDP (inverse difference pyramid). This is used in a lossless manner for texts, graphics, medical or biological images, biometric visual information, such as fingerprints and signatures. For photographs where some loss is often acceptable the images can be compressed further using "lossy" IDP. The text is compressed in a lossless way that allows optical character recognition (OCR) to be carried out.

The IDP algorithm has the advantage of allowing the addition to the whole document of an extra embedded and invisible layer that contains a digital watermark. The watermark is password protected and can only be seen or removed by verified users, thus providing legal providence for an authenticated scanned document. The team points out that the watermark layer does not interfere with the scanned image or the text, whether legal document, fingerprint, or photograph.

However, if someone attempts to change the image, the invisible watermark will also be affected. Damage to the watermark will thus prove unauthorised editing of the document.


Story Source:

The above story is based on materials provided by Inderscience. Note: Materials may be edited for content and length.


Journal Reference:

  1. Kountchev et al. Efficient archiving of documents with protection of their authentic content. International Journal of Reasoning-based Intelligent Systems, 2009; 1 (1/2): 43 DOI: 10.1504/IJRIS.2009.026716

Cite This Page:

Inderscience. "Searchable Scanned Documents With Copy Protection For Archives Storage." ScienceDaily. ScienceDaily, 3 July 2009. <www.sciencedaily.com/releases/2009/07/090703065500.htm>.
Inderscience. (2009, July 3). Searchable Scanned Documents With Copy Protection For Archives Storage. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2009/07/090703065500.htm
Inderscience. "Searchable Scanned Documents With Copy Protection For Archives Storage." ScienceDaily. www.sciencedaily.com/releases/2009/07/090703065500.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Computers & Math News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

EU Pushes Google For Worldwide Right To Be Forgotten

EU Pushes Google For Worldwide Right To Be Forgotten

Newsy (Nov. 27, 2014) Privacy regulators recommend Google expand its requested removals to apply to all its web domains. Video provided by Newsy
Powered by NewsLook.com
Predictions Of Tablets' Demise Sound Familiar

Predictions Of Tablets' Demise Sound Familiar

Newsy (Nov. 26, 2014) The tablet's days are numbered, at least according to a recent IDC report. The market-research firm paints a grim outlook for tablets. Video provided by Newsy
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com
FCC Forces T-Mobile To Alert Customers Of Data Throttling

FCC Forces T-Mobile To Alert Customers Of Data Throttling

Newsy (Nov. 25, 2014) T-Mobile and the FCC have reached an agreement requiring the company to alert customers when it throttles their data speeds. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins